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Selected Quarterly Financial Data (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Apr. 01, 2018
Dec. 31, 2017
Oct. 01, 2017
Jul. 02, 2017
Apr. 02, 2017
Jan. 01, 2017
Oct. 02, 2016
Jul. 03, 2016
Apr. 01, 2018
Apr. 02, 2017
Apr. 03, 2016
Quarterly Financial Information Disclosure [Abstract]                      
Sales $ 126,990 $ 118,053 $ 125,395 $ 133,731 $ 118,618 $ 112,351 $ 121,250 $ 131,374 $ 504,169 $ 483,593 $ 413,976
Gross profit 17,806 18,840 24,115 25,999 21,913 20,912 27,032 28,216 86,760 98,073 80,257
Selling, general, and administrative expenses 14,670 14,139 14,828 15,766 14,468 14,916 14,871 15,126 59,403 59,381 49,086
Goodwill impairment 39,116 0 0 0         39,116 0 0
Operating (loss) income (35,980) 4,701 9,287 10,233 7,445 5,996 12,161 13,090 (11,759) 38,692 31,171
Net (loss) income $ (37,361) $ 17,143 $ 5,210 $ 5,831 $ 4,210 $ 3,551 $ 7,190 $ 7,604 $ (9,177) $ 22,555 $ 18,143
Basic (loss) earnings per share $ (3.51) $ 1.62 $ 0.49 $ 0.55 $ 0.40 $ 0.34 $ 0.68 $ 0.72 $ (0.87) $ 2.14 $ 1.72
Diluted (loss) earnings per share $ (3.50) $ 1.61 $ 0.49 $ 0.55 $ 0.40 $ 0.34 $ 0.68 $ 0.72 $ (0.86) $ 2.13 $ 1.72